Apollo Phase II Linear Amp model 400X. Overall appearance is very good to excellent. Blue painted metal case is excellent. Front panel markings are excellent but there is some pitting on the panel itself. Chassis is pretty clean but there are some rust spots, most notably on the transformer. Exterior cooling fan is obviously a modification. Not tested except that it powers up, no smoke. Approximate size in inches 8W, 10D, 3H not including fan. ham amateur Item #8254